National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Overcast

50°F

10°C

Humidity 78%
Wind Speed SW 3 mph
Barometer 30.03 in
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Last update 20 Nov 2:35 pm CST
Extended Forecast for

Chillicothe IL

  • This Afternoon

    This Afternoon: Patchy drizzle. Cloudy, with a high near 52. South wind 3 to 5 mph.

    High: 52 °F

    Patchy
    Drizzle

  • Tonight

    Tonight: Patchy drizzle. Patchy fog between midnight and 4am. Otherwise, cloudy, with a low around 44. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 44 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Friday

    Friday: A 40 percent chance of rain, mainly after 10am. Cloudy, with a high near 53. North northeast wind 5 to 8 mph, with gusts as high as 15 mph.

    High: 53 °F

    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 32. North northeast wind around 6 mph becoming calm after midnight.

    Low: 32 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 54. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. West southwest wind 3 to 5 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60. West southwest wind 3 to 6 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of rain. Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance Rain

Detailed Forecast

This Afternoon
Patchy drizzle. Cloudy, with a high near 52. South wind 3 to 5 mph.
Tonight
Patchy drizzle. Patchy fog between midnight and 4am. Otherwise, cloudy, with a low around 44. Calm wind becoming north northeast around 5 mph after midnight.
Friday
A 40 percent chance of rain, mainly after 10am. Cloudy, with a high near 53. North northeast wind 5 to 8 mph, with gusts as high as 15 mph.
Friday Night
A 30 percent chance of rain before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 32. North northeast wind around 6 mph becoming calm after midnight.
Saturday
Sunny, with a high near 54. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 36. West southwest wind 3 to 5 mph.
Sunday
Sunny, with a high near 60. West southwest wind 3 to 6 mph.
Sunday Night
Partly cloudy, with a low around 40.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
Monday Night
Rain. Low around 47. Chance of precipitation is 80%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IL
 40.92°N 89.52°W (Elev. 522 ft)
Last Update:
1:21 pm CST Nov 20, 2025
Forecast Valid:
2pm CST Nov 20, 2025-6pm CST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation